Acquisition of a Cathodoluminescence System: Applications to Sedimentologic, Mineralogical, Geochemical, and Structural Analyses

阴极发光系统的获取：在沉积学、矿物学、地球化学和结构分析中的应用

• 批准号: 9906029
• 负责人: Gerilyn Soreghan
• 金额: $ 2.26万
• 依托单位: University of Oklahoma Norman Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-15 至 2001-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9906029&HistoricalAwards=false
• 关键词: Acquisition; Cathodoluminescence; System; Applications; Sedimentologic

9906029SoreghanThis grant provides partial support for the purchase of a cathodoluminescence (CL) system that will replace a 20-year old (non-functional and irreparable) Nuclide CL scope. The proposed equipment consists of a PATCO/Nuclide ELM-3R Luminoscope attached to an Olympus B-Max 50 research microscope. To aid in the acquisition of typically low-light CL images, the microscope will be equipped with a Diagnostic Instruments SPOT digital camera. A dedicated computer (400 MHz Pentium II or equivalent) and image analysis software (e.g., Adobe Photoshop) will allow for processing of the digital photographs. Many minerals (e.g., calcite, dolomite, quartz, feldspar, diamond) exhibit luminescence when bombarded by an electron beam (Marshall, 1988). Impurities and/or lattice defects within minerals significantly affect the luminescence phenomenon; accordingly cathodoluminescence microscopy is a powerful tool for the study of compositional and structural variations in minerals. Its use in sedimentary petrography is well established (e.g., Machel and Burton, 1991), but it is also extremely valuable for other geochemical and structural studies (Sippel and Spencer, 1970; Dorobek and Watkinson, 1988; Marshall, 1988, Onasch and Davis, 1988; Perny et al., 1992). The equipment will be used by four investigators for varied aspects of research and education within the School of Geology & Geophysics at the University of Oklahoma. Anticipated uses include the following: (1) Sedimentary Geology Research and Education (G.S. Soreghan); (2) Quartz of Igneous Origin (D. London); (3) Compaction/Cementation Studies (T.A. Dewers); (4) Microscale Strain Analysis (K.J. Smart).***

9906029 Soreghan该赠款为购买阴极发光（CL）系统提供部分支持，该系统将取代使用20年的（无功能且无法修复的）核素CL范围。 申报设备包括一个PATCO/核素ELM-3R Luminoscope，连接到Olympus B-Max 50研究显微镜。 为了帮助采集典型的低光CL图像，显微镜将配备诊断仪器SPOT数码相机。 专用计算机（400 MHz Pentium II或同等产品）和图像分析软件（例如，Adobe Photoshop）将允许处理数字照片。许多矿物（例如，方解石、白云石、石英、长石、金刚石）在被电子束轰击时显示发光（马歇尔，1988）。 矿物中的杂质和/或晶格缺陷显着影响发光现象;因此阴极发光显微镜是研究矿物成分和结构变化的有力工具。 它在沉积岩相学中的应用是公认的（例如，Machel和Burton，1991年），但它对其他地球化学和结构研究也极有价值（Sippel和Spencer，1970年; Dorobek和Watkinson，1988年;马歇尔，1988年; Onasch和Davis，1988年; Perny等，1992年）。 这些设备将由四名调查人员用于俄克拉荷马州大学地质地球物理学院的研究和教育的各个方面。 预期用途包括：（1）沉积地质学研究和教育（G. S. Soreghan）;（2）火成石英（D.伦敦）;（3）压实/胶结研究（T.A. Dewers）;（4）微尺度应变分析（K. J. Smart）。*